Average Co-Inventor Count = 2.67
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Harima Chemicals, Incorporated (2 from 82 patents)
2. Nippon Paper Industries Co., Ltd. (1 from 342 patents)
2 patents:
1. 8816031 - Water-soluble polymer and additive for paper manufacture
2. 8414739 - Filled paper and method of manufacturing the same